Improvement in vibrating propellers



l 4L) GUGLER. 'VIBRATING-PROPELLER.

Patented-March 7 wnuzssis ATTnnNEY UNITED STATES PATENT QEFIGE.

LOUISGUGLER, OF MILWAUKEE, WISCONSIN.

IMPROVEMENT IN VIBRATING PROPELLERS.

Specification forming part of Letters Patent No. 174,419, dated March7,1876; application filed october 16,1875.

To all whom it may concern: f

Be it known that I, LoUIs GUGLER, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented a new and ImprovedPropeller, of which the following is a specication In the accompanyingdrawing, Figure 1 represents a side elevation of my improved propellin gdevice for vessels; Fig. 2, a horizontal section of the same, on theline c c,Fig.-1; and Figs. 3 and 4, respectively, front view andhorizontal section on line w, Fig. 3, of a modication of the paddles orwings.

Similar letters of reference indicate .corresponding parts.

' ing of special advantage for cana-l and smaller boats.

The invention consists of a series of verticallyhin ged paddles or wingsthat are mounted to a reciprocating frame, sliding in horizontal guidesof the vessel. rlhe position ofthe paddles for forward or backwardmotion is produced by a lever-operated rack-bar engaging pinions of thebucket-standards.

In 'the drawing, A A are the horizontal guide-bars, which are attachedtothe side, stern, or other suitable part of the vessel, and made ofsufcient length for the stroke of the paddle-frame B. The. paddle-frameB is operated by means of a horizontal shaft, B', that slides in astuffing-box of the vessel, reciprocating motion being imparted to shaftand frame by suitable power. The vertical stiffening-pieces of thepaddle-frame are Inadetapering or wedge-shaped, to furnish'as small adegree of resistance to the water as possible. The paddles or wings Care hinged to verticallymounted standards D, which are also of taperingor wedge shape, and pivoted, at top and bottom, to the reciprocatingframe B.

The paddles C swing according to the position of the standards and themotion of the frame, folding up in one direction, and spreading out atright angles to the frame in opposite direction for acting on the water.

The paddles offer, in folded position, no resistance to the water, andare provided with rubber or other cushioning devices a, for

smoothening the folding up, and holding the paddles in parallel positionfor the ready entrance of the water that opens them for the propellingaction on the water.

The'standards-D are provided with flanges or seats b, that furnishl aneven support along the entire length of the paddles, which are madenarrow for passing more readily through the water.

lf it is desired to obtain a more powerful stroke, lateral paddle-frameswith two sets of hinged paddles, as shown in Figs. 3 and 4,'

may be employed, by which the action of the paddles is increased, whilethe width of the paddles is not increased.

The paddles C are adjusted for forward or backward propulsion of thevessel by means of a sliding rack-bar, E, that engages pinions E of therack-standards. The rack-bar E 1s guided in-a stuffing-box of the.vessel and in supports of the paddle-frame B, and operated by a lever,F,fulcrun1ed to the drivin g-shaft B.

By throwing lever F in one direction, the paddle-standards swing intoposition forforward propulsion By moving the lever in the oppositedirection, the standards are turned and the paddles carried in positionfor propelling the vessel in backward direction, in which position theyare shown in the drawing.

This system of paddles may also be made available for the purpose ofsteering the vessel by making the guide-bars movable, and

carrying the whole paddle-frame, by suitablemechanism, to one side orthe other, so that the paddles serve for propelling and steering thevessel in a very effective manner.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of grooved frame A, reciprocatingframe B, the standards D, pivoted in the latter, and having seats b, andthe pad- Y dles C, hinged to the standards, and having cushions a, asand for the purpose speciied.

L. GUGLER. Witnesses ERNST KRAUBS,

CEAS. P. GORNILLIE.

